docs: def cli(env, identifier):
      """Detail firewall."""
  
      mgr = SoftLayer.FirewallManager(env.client)
  
      firewall_type, firewall_id = firewall.parse_id(identifier)
      if firewall_type == 'vlan':
          rules = mgr.get_dedicated_fwl_rules(firewall_id)
      else:
          rules = mgr.get_standard_fwl_rules(firewall_id)
  
      env.fout(get_rules_table(rules))